Assessment of factors influencing the biomethane yield of maize silages

作者：Mayer Frederic; Gerin Patrick A; Noo Anais; Foucart Guy; Flammang Jos; Lemaigre Sebastien; Sinnaeve Georges; Dardenne Pierre; Delfosse Philippe^*

来源：Bioresource Technology, 2014, 153: 260-268.

DOI：10.1016/j.biortech.2013.11.081

• Biochemical methane potential (BMP)
• Biomethanation
• Anaerobic digestion
• Biogas
• Renewable energy

A large set of maize silage samples was produced to assess the major traits influencing the biomethane production of this crop. The biomass yield, the volatile solids contents and the biochemical methane potential (BMP) were measured to calculate the biomethane yield per hectare (average = 7266 m(3) ha (1)). The most influential factor controlling the biomethane yield was the cropping environment. The biomass yield had more impact than the anaerobic digestibility. Nevertheless, the anaerobic digestibility of maize silages was negatively affected by high VS content in mature maize. Late maturing maize varieties produced high biomass yield with high digestibility resulting in high biomethane yield per hectare. The BMP was predicted with good accuracy using solely the VS content.

• 出版日期2014-2